The Voided Gazelle

I went to the part of the map where it says path of predation but the site i was standing didnt change name to path of predation, so i patrolled, still couldnt find the exact location(s), i tought to myself ill go to wowhead to check how its done....

Turns out this achievement has 0 comments :(

You get this by killing another player while they are STILL FLYING on their mount, in the path of predation. If they land it does not count. If they get dismounted and are parachuting it does not count.

The path of predation location is a bit confusing as well. You must be on the southern road near the path of predation icon (grey symbol sort of like an X) - this is NOT the most-southern area where it says "path of predation" on the map. You need to be a bit north of where it says it on the map. You can hover your mouse over your minimap to see the current subzone you are in, and if it says anything other than "path of predation" keep looking.

Unfortunately this area of the map is almost never active since it is between nodes. Add to that people are dragonriding at a million miles an hour (and you must kill them mid air) making this pretty tricky to get.

Am I dumb, how do you kill a player while they're flying on their 700%+ flight speed mount?